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Message-Id: <20240822224547.385095-9-ulf.hansson@linaro.org>
Date: Fri, 23 Aug 2024 00:45:45 +0200
From: Ulf Hansson <ulf.hansson@...aro.org>
To: Viresh Kumar <vireshk@...nel.org>,
Nishanth Menon <nm@...com>,
Stephen Boyd <sboyd@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <quic_kdybcio@...cinc.com>,
Nikunj Kela <nkela@...cinc.com>,
Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
Thierry Reding <thierry.reding@...il.com>,
Mikko Perttunen <mperttunen@...dia.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Stephan Gerhold <stephan@...hold.net>,
Ilia Lin <ilia.lin@...nel.org>,
Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
Vikash Garodia <quic_vgarodia@...cinc.com>,
Ulf Hansson <ulf.hansson@...aro.org>,
linux-pm@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 08/10] media: venus: Convert into devm_pm_domain_attach_list() for OPP PM domain
Rather than hooking up the PM domain through devm_pm_opp_attach_genpd() and
manage the device-link, let's avoid the boilerplate-code by converting into
devm_pm_domain_attach_list().
Acked-by: Stanimir Varbanov <stanimir.k.varbanov@...il.com>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
---
Changes in v3:
- Updated commitmsg and added Stanimir's ack.
- Converted to devm mangaged version of dev_pm_domain_attach_list()
---
drivers/media/platform/qcom/venus/core.c | 8 ++--
drivers/media/platform/qcom/venus/core.h | 6 +--
.../media/platform/qcom/venus/pm_helpers.c | 44 +++++--------------
3 files changed, 15 insertions(+), 43 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 165c947a6703..4666278671e2 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -751,7 +751,7 @@ static const struct venus_resources sdm845_res_v2 = {
.vcodec_clks_num = 2,
.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0", "vcodec1" },
.vcodec_pmdomains_num = 3,
- .opp_pmdomain = (const char *[]) { "cx", NULL },
+ .opp_pmdomain = (const char *[]) { "cx" },
.vcodec_num = 2,
.max_load = 3110400, /* 4096x2160@90 */
.hfi_version = HFI_VERSION_4XX,
@@ -800,7 +800,7 @@ static const struct venus_resources sc7180_res = {
.vcodec_clks_num = 2,
.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
.vcodec_pmdomains_num = 2,
- .opp_pmdomain = (const char *[]) { "cx", NULL },
+ .opp_pmdomain = (const char *[]) { "cx" },
.vcodec_num = 1,
.hfi_version = HFI_VERSION_4XX,
.vpu_version = VPU_VERSION_AR50,
@@ -857,7 +857,7 @@ static const struct venus_resources sm8250_res = {
.vcodec_clks_num = 1,
.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
.vcodec_pmdomains_num = 2,
- .opp_pmdomain = (const char *[]) { "mx", NULL },
+ .opp_pmdomain = (const char *[]) { "mx" },
.vcodec_num = 1,
.max_load = 7833600,
.hfi_version = HFI_VERSION_6XX,
@@ -916,7 +916,7 @@ static const struct venus_resources sc7280_res = {
.vcodec_clks_num = 2,
.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
.vcodec_pmdomains_num = 2,
- .opp_pmdomain = (const char *[]) { "cx", NULL },
+ .opp_pmdomain = (const char *[]) { "cx" },
.vcodec_num = 1,
.hfi_version = HFI_VERSION_6XX,
.vpu_version = VPU_VERSION_IRIS2_1,
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 55202b89e1b9..435325432922 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -132,9 +132,7 @@ struct venus_format {
* @vcodec1_clks: an array of vcodec1 struct clk pointers
* @video_path: an interconnect handle to video to/from memory path
* @cpucfg_path: an interconnect handle to cpu configuration path
- * @has_opp_table: does OPP table exist
* @pmdomains: a pointer to a list of pmdomains
- * @opp_dl_venus: an device-link for device OPP
* @opp_pmdomain: an OPP power-domain
* @resets: an array of reset signals
* @vdev_dec: a reference to video device structure for decoder instances
@@ -186,10 +184,8 @@ struct venus_core {
struct clk *vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX];
struct icc_path *video_path;
struct icc_path *cpucfg_path;
- bool has_opp_table;
struct dev_pm_domain_list *pmdomains;
- struct device_link *opp_dl_venus;
- struct device *opp_pmdomain;
+ struct dev_pm_domain_list *opp_pmdomain;
struct reset_control *resets[VIDC_RESETS_NUM_MAX];
struct video_device *vdev_dec;
struct video_device *vdev_enc;
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index ea8a2bd9419e..355dfa586f8e 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -864,7 +864,6 @@ static int venc_power_v4(struct device *dev, int on)
static int vcodec_domains_get(struct venus_core *core)
{
int ret;
- struct device **opp_virt_dev;
struct device *dev = core->dev;
const struct venus_resources *res = core->res;
struct dev_pm_domain_attach_data vcodec_data = {
@@ -872,6 +871,11 @@ static int vcodec_domains_get(struct venus_core *core)
.num_pd_names = res->vcodec_pmdomains_num,
.pd_flags = PD_FLAG_NO_DEV_LINK,
};
+ struct dev_pm_domain_attach_data opp_pd_data = {
+ .pd_names = res->opp_pmdomain,
+ .num_pd_names = 1,
+ .pd_flags = PD_FLAG_DEV_LINK_ON,
+ };
if (!res->vcodec_pmdomains_num)
goto skip_pmdomains;
@@ -881,37 +885,15 @@ static int vcodec_domains_get(struct venus_core *core)
return ret;
skip_pmdomains:
- if (!core->res->opp_pmdomain)
+ if (!res->opp_pmdomain)
return 0;
/* Attach the power domain for setting performance state */
- ret = devm_pm_opp_attach_genpd(dev, res->opp_pmdomain, &opp_virt_dev);
- if (ret)
- goto opp_attach_err;
-
- core->opp_pmdomain = *opp_virt_dev;
- core->opp_dl_venus = device_link_add(dev, core->opp_pmdomain,
- DL_FLAG_RPM_ACTIVE |
- DL_FLAG_PM_RUNTIME |
- DL_FLAG_STATELESS);
- if (!core->opp_dl_venus) {
- ret = -ENODEV;
- goto opp_attach_err;
- }
+ ret = devm_pm_domain_attach_list(dev, &opp_pd_data, &core->opp_pmdomain);
+ if (ret < 0)
+ return ret;
return 0;
-
-opp_attach_err:
- return ret;
-}
-
-static void vcodec_domains_put(struct venus_core *core)
-{
- if (!core->has_opp_table)
- return;
-
- if (core->opp_dl_venus)
- device_link_del(core->opp_dl_venus);
}
static int core_resets_reset(struct venus_core *core)
@@ -1000,9 +982,7 @@ static int core_get_v4(struct venus_core *core)
if (core->res->opp_pmdomain) {
ret = devm_pm_opp_of_add_table(dev);
- if (!ret) {
- core->has_opp_table = true;
- } else if (ret != -ENODEV) {
+ if (ret && ret != -ENODEV) {
dev_err(dev, "invalid OPP table in device tree\n");
return ret;
}
@@ -1013,10 +993,6 @@ static int core_get_v4(struct venus_core *core)
static void core_put_v4(struct venus_core *core)
{
- if (legacy_binding)
- return;
-
- vcodec_domains_put(core);
}
static int core_power_v4(struct venus_core *core, int on)
--
2.34.1
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